Comment Re: this is fun, going offtopic (Score 1) 37
https://www.pcmag.com/news/the-golden-age-of-pdas
https://lunduke.substack.com/p/the-tandy-zoomer-the-x86-pda-before
https://lowendmac.com/2016/a-history-of-palm-part-1-before-the-palmpilot/
But it does seem that it's OS is originally by Geoworks, not Palm (my mistake). (GEOS had been first released in 1986 according to the Wikipedia link https://en.wikipedia.org/wiki/GEOS_(8-bit_operating_system) ). Now, the first version of it are similar to classic macOS, but then as you've mentioned and others know, that was based on Xerox Parc, so what have you.
As for the Newton being publicly demonstrated in 1992, there wasn't a functioning prototype so this becomes iffy to say how much it could inspire anyone. At least according to this link: https://thisdayintechhistory.com/05/29/apple-newton-announced/ As the concept is, an idea is cheap, being able to make it is hard.
(On a side note, from what I also was reading on the Wikipedia about Geoworks https://en.wikipedia.org/wiki/Berkeley_Softworks is that it seems that Apple was going to also license it for their Powerbooks (1991 release) and they were going to use GEOS. "GeoWorks got into extensive discussions with Apple about developing a low-cost notebook laptop which would run GEOS but with a modified Macintosh UI. The idea got to the point that it was presented to then Apple CEO John Sculley. The idea was scrapped in favour of producing Macintosh PowerBooks with MacOS." But this is all I could find and how valid Wikipedia always is can be debated. But it does indicate that it's possible Apple had already started taking notes from the OS that was used so could be some copying of GEOS for the Newton.)